https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/sound/pci/hda/hda_proc.c
it is because nodes is read from codec again in print_codec_info()
need to fix this value
nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
if (! nid || nodes < 0) {
snd_iprintf(buffer, "Invalid AFG subtree\n");
snd_hda_power_down(codec);
return;
}
print_gpio(buffer, codec, codec->afg);
if (codec->proc_widget_hook)
codec->proc_widget_hook(buffer, codec, codec->afg);
for (i = 0; i < nodes; i++, nid++) {
unsigned int wid_caps =
snd_hda_param_read(codec, nid,
AC_PAR_AUDIO_WIDGET_CAP);
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https://bugs.launchpad.net/bugs/1313904
Title:
[W230SS, VIA VT1802, Green Headphone Out, Front] No sound after
suspend/resume
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